<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>令人讨厌的CSS动画效果</title>
    <!-- 摇一摇 shakeit -->
    <!-- 加剧 intensifies -->
    <!-- 字体频闪 fontalicious -->
    <!-- 频闪 strobe -->
    <!-- 龙卷风 twister -->
    <link rel="stylesheet" href="style.css" />
    <style>
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      body {
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
      }
    </style>
  </head>
  <body>
    <h1 class="animated twister">令人讨厌的CSS动画效果</h1>
  </body>
</html>
